Material: BK7, K9, quartz, germanium, silicon, zinc selenide and other optical glass

Size: Diameter 5-diameter 190mm (according to customer needs)

Dimension error: +0.0/-0.1mm

Center thickness error: ±0.1mm

Focal length error: ±1%

Surface accuracy: 3 (0.5)

Finish: 40/20

Chamfer: According to customer needs

Coating: According to customer needs

Each lens product requires the customer to provide diameter Dia (mm), focal length EFL (mm), radius R1 (mm), center thickness Tc (mm), side thickness Te (mm) before you can quote and find inventory

A biconcave lens has a concave side and a double side, and has a positive focal length. It is usually used for related applications such as beam reduction, focal length reduction, or image enlargement. In order to reduce spherical aberration, the double concave lens is used to collimate the beam to focus, the beam should be incident on the curved surface of the lens; when it is used to collimate the point light source, the beam is incident on both sides. A biconcave lens focuses light into a point. Commonly used for aiming and focusing of monochromatic light sources. When in use, face the concave surface to the incident light.

Application areas: security, vehicle, digital camera, laser, optical instruments

Huizhou Yisu Photonics can produce: plano-convex lenses, plano-concave lenses, biconvex lenses, biconcave lenses, meniscus lenses, cemented lenses, cylindrical lenses, etc., with nearly ten years of optical product processing experience and a complete prism lens processing production line . Anti-reflection coating can be applied to reduce the reflection on the lens surface according to customer requirements. This can reduce the loss of light energy and make the imaging clearer.